This includes questioning the safety of topical products -- such as sunscreens -- over fear that they may cause birth defects. Haglund's syndrome is an inflammatory condition that could affect the area around your heel, where a small fluid-filled sac, called a bursa, allows the Achilles' tendon to slide smoothly over the bony ridge of your calcaneus (heel bone). Side effects of hydroxychloroquine tablets 200 mg Can plaquenil cause eye damage I still believe this to be true, but I am convinced now that plaquenil must have multiple modes of action, one being long term effects, and one being something happening in the short term. There is no way what I experienced over the last 4 days was due to placebo affect. By last night, I was so achy, tired, trouble breathing still, etc. Nov 09, 2018 Taking hydroxychloroquine long-term or at high doses may cause irreversible damage to the retina of your eye. You may report side effects to FDA at 1-800-FDA-1088. Back to Top. So, I've read the half-life is from 30-60 days. That is one of the reasons I didn't want to take it - that's a long time to stick around. I did read hair loss, photosensitivity, itching area all potential side effects of Plaquenil, so hopefully those will subside soon as the med levels drop. Although not all of these side effects may occur, if they do occur they may need medical attention. Applies to hydroxychloroquine: oral tablet Along with its needed effects, hydroxychloroquine (the active ingredient contained in Plaquenil) may cause some unwanted effects. How long do hydroxychloroquine side effects last Hydroxychloroquine toxicity - EyeWiki, Hydroxychloroquine - Side Effects, Dosage, Interactions. Plaquenil neck painHydroxychloroquine free Plaquenil Side Effects by Likelihood and Severity INFREQUENT side effects. If experienced, these tend to have a Severe expression. A Disorder Of The Retina Of The Eye;. RARE side effects. Common and Rare Side Effects for Plaquenil Oral. Plaquenil - how long for side effects to subside?. Plaquenil Hydroxychloroquine Uses, Dosage, Side Effects.. HCQ is a fairly innocuous drug with few side effects. I was given it just as a top up for Methotrexate as they work better in combo. It shouldn't be a problem but they say to have your eyesight checked once a year as this is very rare but possible side effect. Aug 14, 2017 Plaquenil can cause serious side effects when used in high doses for chronic diseases such as RA over the long term. The New Zealand Dermatological Society recommends that to decrease the risk of retina damage, no more than 200mg of Plaquenil should be taken a day, and a dose of 400mg per day should be taken no longer than a few weeks. Plaquenil is generally well-tolerated, but side effects are possible. Common side effects linked to Plaquenil include nausea and diarrhea. Taking the medication with food eases nausea for most people taking the drug. Less common side effects include skin rashes, hair thinning, and weakness.